PERCUTANEOUS DILATATION OF BENIGN BILIARY STRICTURES - SINGLE-SESSION THERAPY WITH GENERAL-ANESTHESIA

Percutaneous biliary stricture dilatation (PBSD) is an uncomfortable procedure for patients that presently requires multiple dilatation sessions spread over many days. We evaluated the use of general anesthesia to enable PBSD to be performed in a single sitting in 14 patients with benign biliary strictures (11 anastomotic and three iatrogenic strictures). Four patients had multiple strictures, and the other 10 had a single stricture. Strictures were documented by transhepatic cholangiography (11 patients) or T-tube cholangiography (three); quantitative biliary perfusion studies were additionally performed in seven cases. Dilatation was performed transhepatically in 11 patients and via a T-tube track in three. Balloons ranged from 8 to 12 mm in diameter and were manually inflated for 3 min with an average of five inflations per stricture. Stenting catheters were left across the strictured areas in all patients for 6-21 days (mean, 10 days) before removal. The mean duration of hospital stay for all patients was 5.7 days, which could further be divided into means of 3.6 days (range, 1-6 days) for 11 patients without complications and 13.7 days (range, 13-14 days) for three patients who had complications. Complications included cholangitis; liver hematoma (which resolved with conservative therapy in both cases); and pseudoaneurysm of the hepatic artery, which necessitated angiographic embolization. PBSD achieved long-term patency in 13 (93%) of 14 patients with a follow-up period of 2.0 to 5.5 years (mean, 3.2 years). A stricture recurred in one patient 1.5 years after dilatation. We conclude that PBSD with the patient under general anesthesia can be performed in a single visit to the radiology department with excellent long-term patency rates, a shorter hospital stay, and a pain-free procedure for the patient.